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Demographic Data Report for Iowa by County
Population: Age 18-39
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Value

County
 sort alphabetically by name ascending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
 sort by value descending
People (Age 18-39)
 sort by sample size ascending
Rank within US
(of 3143 counties)
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Iowa N/A 28.8 920,272 28 of 52
United States N/A 29.5 98,058,393 N/A
Van Buren County Rural 20.2 1,462 2,946
Fremont County Rural 20.5 1,347 2,922
Audubon County Rural 20.7 1,163 2,899
Cherokee County Rural 20.7 2,396 2,899
Guthrie County Urban 20.9 2,229 2,866
Dickinson County Rural 21.1 3,774 2,843
Adams County Rural 21.2 773 2,825
Clayton County Rural 21.3 3,638 2,815
Wayne County Rural 21.5 1,399 2,780
Cass County Rural 21.6 2,833 2,761
Allamakee County Rural 22.3 3,128 2,639
Chickasaw County Rural 22.3 2,648 2,639
Delaware County Rural 22.3 3,910 2,639
Osceola County Rural 22.4 1,372 2,619
Sac County Rural 22.4 2,190 2,619
Shelby County Rural 22.4 2,628 2,619
Taylor County Rural 22.4 1,321 2,619
Lucas County Rural 22.6 1,966 2,567
Ringgold County Rural 22.6 1,053 2,567
Pocahontas County Rural 22.7 1,600 2,546
Butler County Rural 22.8 3,265 2,515
Franklin County Rural 22.8 2,279 2,515
Hancock County Rural 22.8 2,446 2,515
Monona County Rural 22.8 1,964 2,515
Montgomery County Rural 22.8 2,340 2,515
Floyd County Rural 22.9 3,544 2,494
Jackson County Rural 23.0 4,472 2,466
Carroll County Rural 23.2 4,793 2,414
Kossuth County Rural 23.2 3,391 2,414
Ida County Rural 23.3 1,616 2,387
Greene County Rural 23.4 2,043 2,359
Davis County Rural 23.5 2,148 2,328
Mills County Urban 23.5 3,420 2,328
Mitchell County Rural 23.5 2,481 2,328
Benton County Urban 23.6 6,056 2,294
Hamilton County Rural 23.6 3,516 2,294
Iowa County Rural 23.6 3,897 2,294
Worth County Rural 23.6 1,743 2,294
Madison County Urban 23.7 3,973 2,266
Lee County Rural 23.9 7,930 2,208
Palo Alto County Rural 23.9 2,129 2,208
Appanoose County Rural 24.0 2,944 2,185
Jones County Urban 24.0 4,999 2,185
Keokuk County Rural 24.0 2,390 2,185
Humboldt County Rural 24.1 2,303 2,153
Plymouth County Rural 24.1 6,205 2,153
Adair County Rural 24.2 1,810 2,118
Wright County Rural 24.2 3,104 2,118
Clinton County Rural 24.3 11,287 2,094
Lyon County Rural 24.3 2,940 2,094
Cerro Gordo County Rural 24.4 10,433 2,056
Tama County Rural 24.4 4,148 2,056
Buchanan County Rural 24.5 5,052 2,020
Grundy County Urban 24.5 3,028 2,020
Hardin County Rural 24.5 4,106 2,020
Cedar County Rural 24.6 4,539 1,991
Louisa County Rural 24.6 2,630 1,991
Clay County Rural 24.7 4,060 1,961
Harrison County Urban 24.8 3,635 1,916
Washington County Urban 25.0 5,630 1,828
Page County Rural 25.1 3,813 1,791
Fayette County Rural 25.2 4,881 1,764
Monroe County Rural 25.2 1,901 1,764
Calhoun County Rural 25.3 2,499 1,724
Des Moines County Rural 25.3 9,768 1,724
Union County Rural 25.4 3,060 1,691
Howard County Rural 25.5 2,413 1,655
Crawford County Rural 26.0 4,231 1,479
O'Brien County Rural 26.0 3,665 1,479
Jasper County Urban 26.2 9,917 1,389
Marshall County Rural 26.2 10,484 1,389
Clarke County Rural 26.3 2,546 1,356
Wapello County Rural 26.4 9,324 1,323
Boone County Urban 26.5 7,067 1,285
Pottawattamie County Urban 26.6 24,867 1,248
Winnebago County Rural 26.6 2,833 1,248
Emmet County Rural 26.7 2,489 1,210
Marion County Rural 26.9 9,023 1,143
Muscatine County Rural 27.0 11,558 1,116
Mahaska County Rural 27.1 5,973 1,092
Warren County Urban 27.2 14,568 1,068
Scott County Urban 27.9 48,675 880
Winneshiek County Rural 28.1 5,605 835
Henry County Rural 28.4 5,742 775
Jefferson County Rural 28.5 4,464 755
Woodbury County Urban 28.5 30,136 755
Webster County Rural 28.9 10,648 682
Linn County Urban 29.0 66,545 662
Sioux County Rural 29.0 10,451 662
Dubuque County Urban 29.1 28,838 644
Bremer County Urban 29.3 7,354 602
Buena Vista County Rural 29.3 6,065 602
Poweshiek County Rural 29.4 5,468 578
Dallas County Urban 30.4 31,633 432
Decatur County Rural 30.9 2,368 376
Polk County Urban 31.2 155,061 352
Black Hawk County Urban 33.4 43,684 216
Johnson County Urban 42.1 65,192 39
Story County Urban 48.6 47,944 13
Notes:
Created by statecancerprofiles.cancer.gov on 02/19/2025 5:52 pm.

Φ Rural-Urban Continuum Codes provided by the USDA.

Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 18-39, see the dictionary.

Data for United States does not include Puerto Rico.

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